Aaeon p



A. P. RICH. -Fla'nging Machine.

No. 66,992. Patented. July 23, 1867.

U El

wi/zwessca Inuc nfor guitar grates-gaunt @ffire.

AARON P. RICH, or TROY, NEW YORK.

Letters Patent No. 66,992, dated July 23, 1867.

IMPROVEMENT IN MACHINERY FOR FITTING UP STOVE-PLATE PATTERN BOILER-HOLESEATS.

io'lge grl vehziis numb in in time Etrttrrs again imh mating part at.1132 same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, AARON P. RICH, of Troy, in the county ofRensselaer', and State of New York, have invented a new and improvedMachine for Fitting Up Stove-Plate Pattern Boiler-Hole Seats; and I dohereby declare that the following is a. full and exact description ofthe same, reference being had to the annexed drawings and to the lettersof reference marked thereon, forming a part of this specification, inwhich- Figure 1 is a perspective view of said improved machine.

Figure 2 is a vertical sectional view of fig. 1, taken through itscentre part, the blue shaded line thereon showing the manner of bedding:2. boiler-hole stove-plate for the purpose of operation thereon; and

Figure 3 is a detached view on an enlarged scale of the rotatingtool-holder or cutter-head, the blue shaded line thereon representing aboiler-hole cover or lid, as secured in position to be trued up orfitted.

The same letters refer to like parts in each of said figures.

In fitting up or finishing iron patterns for cooking-stoves and ranges,such as are used by monlders in preparing moulds for'castings of thesame for stoves and ranges, the boiler-hole seats or flanges in saidpatterns have been fitted for such use heretofore by the slow andexpensive process of filing and scraping them by hand labor, and 'thedegree of accuracy of such method of fitting and finishing dependedentirely upon the manual skill and dexterity of the workman engaged,making such process necessarily wanting in perfection, expedition, andin economy. To lessen the expense and make perfect the fitting andfinishing of such parts of iron patterns as above mentioned is theobject of my said invention, which is the production and construction ofa new and improved machine to fully perform and accomplish the work offitting up" the boiler or pot-hole seats in stoveplate patterns, andalso to accurately fit the lids or cover-patterns to said boiler-holes,which process is performed by the operation of said machine in anaccurate, expeditious, and economical manner. Said improved machine isalso applicable to, and intended to be also used for, timing upboiler-hole seats, and their lids or covers, in castings for first-classcooking-stoves, previous to mounting the same;

The nature of my said invention and improvements consists in a rotatingtool-holder, having a suitable feed. motion given to it, and its shaftpassing through a bed-plate, substantially, so as to be supported bysaid bedplate, to prevent lateral springingof the shaft when thecutting-tool acts, and employing it in combination with a slottedbed-plate,'circumjacent adjustable bearing or bed-screws, adjustablestay-pieces, and adjustable setscrew clamp-pieces; the said parts beingemployed, combined, and arranged with said tool-holder, in mannersubstantially as hereinafter fully described, and for the purposes ofthe better bedding" of and reaming out or fitting up" stove-platepattern boiler-hole seats. The boiler-hole plates of stoves being thincastings, with deep flanges around the boiler holes and at other partsof the under surface of the plate, which, together with deepbordermouldings, made such plates difiieult to bed firmly and equally, so astobe operated upon without springing" or fracturing them, and to preventsuch liability, it has been the practice heretofore to bed such platesby driving a series of blocks or wedges, or fwedging up," between thebed-plate and those parts of the plate not touching the bed-plate, butwhich require a solid bed. This method of wedging up" is defective inpractice, for, owing to the lightness of stove-plates, the least tremorsor shakings of the plate by action of the cutting-tool on it wouldloosen and displace the wedges from their adjusted positions, whichloosened-the support to that part of the plate direetly acted on,thereby incurring liability to fracture or springing of the plate,besid'esspoiling the accuracy of the work. But by'my said improvementsthe aforementioned plates can be quickly adjusted, and solidly, equally,and immovably bedded, in manner substan tially as hereinafter shown, sothat such plates may be acted upon by a cutting-tool without at allderanging the bedding devices, as is the case when blocks or wedges areemployed.

To enable others skilled in the art to make and use my said inventionand improved machine, I will now proceed to fully describe itsconstruction and operation, to wit:

Within a stout, framework of timber or of iron, A A, 13 B, and C, is thebevel gear-wheel F and its connecting pinion-gear E, arrangedsubstantially in manner as shown in the annexed drawings. Upon the shaftH of said bevel-gear is arranged a hand-wheel, G, which operates bymeans of the usual devices employed for that purpose, and well known tomachinists, to feed a cutter hca-d or tool-holder attachedto the top.end of said shaft, either up or down, as may be desired. Secured to thetop of the aforesaid framework is a-b ed'plate, D,

'provided on each side or end with a se: ice or set ofdiagonally-located slots or openings, P P. The inner ends of each set ofsaid slots, at each, respectirely, opposite sides of the-bed-plate,converge toward each other, or have diagonal positions to each, inmanner substantially as shown in fig. 1. Arranged to be adjusted to anyposition on and over said slots 1? P are clamp-pieces L L, and beingrespectively secured in adjusted positions by means ofabolt passingthrough said slots and secured by a nut, The horizontal arms of saidclamp-pieces are, respectively provided with a set-screw, R; also,arranged on and over either the first or second adjoining slots P arestay-pieces M M,'whieh may be adjusted to any desired position on oralong said slots, and secured therein by mcans of a bolt passing throughthe slot and stay-piece, and held by a nun a. Arranged around andpassing through the bed-plate D, and adjustable therein, is a series ofhearing or bed screws, (1 q q, and provided with check-nuts,substantially as shown in figs. 1 and 2. K is a removable tool-holder,holding a tool, It. This is used only whenfltruing up" and fittingboiler-hole covers or lids, and it is then placed in' proper positionupon the bed-plate D, so as to have its tool come in cutting range of acover bedded upon the flanged top of tool-holder J, and it is secured insuch position to the bed-plate by bolts and nuts, as shown. The upperpart of aforesaid shaft H passes through the bed-plate D, and it isthereby, with-its cutter-head, fully supported or braced, and preventedfrom lateral springing" when in action. To the top part of this shaft iskeyed a toolholder or cutter-head, J, which is recessed in its top sideto form a chamber for the cutting-tool" s, that projects. its cuttingpoint oredge through an aperture in the side of said recess or chamber,said tool being adjusted to its work by a set-screw,f, passing throughthe side of the recess, and held in adjusted position by a set-screw, g.The upper part of said tool-holder J is made with a flange or rim,0,-which has notches for holding fasteningdown bolts d d; and also a setof adjustable hearing or bed screws, 2 e, is provided, having check-nutsto secure them firmly in adjusted positions. N is a crank for operatingthe machine. In place of the crank a pulley may be used, and the machineoperated by steam or other pqwer.

The operation of this improved machine is as follows: To fit up stovepattern-plate boiler-hole seats-the plate or casting is first properlyadjusted on the bed-plate D, so that the cutter-head or tool-holder J iscentred within one of the boiler holes. The plate is then firmly securedin such' position by adjusting the stay-pieces M, up ,in the slots P, tothe corner edges or thereabouts of the border moulding of the plate, andsecuring them therein by their bolts and nuts a. The clamp-pieces L arethen adjusted up in their slots'P to the opposite edges, and thentightened by their bolts and nuts 6, thus preventingeither any side orany end play or movement to the said stove-plate. The set-screws R inthe arms of the said clamp-pieces are now set down tothe plate, therebypreventing any upward movement of it. It being necessary, in such largeand thin castings as stove-plate tops or boiler-hole plates, that thoseparts directly operated upon be solidly supported, and to give suchsupport to a boiler-hole flange, which in many cases does not 'touch thebed-plate D, it being prevented therefrom by the width orjdepth of theborder-moulding of the plate, to meet such cases'the adjustable hearing'or bed screws are provided, which, being "set up to the boilerholeflange and so secured by check-nuts, give thereby a firm bearing, thatpermits said boiler-hole seat to be turned out or fitted up by therotatingtool or cutter s, when the aforesaid tool-holder J is rotated,without liability of springing" or fracturing the. casting; all inmanner substantially as shown by the blue shaded section of a stoveboiler-hole plate in fig. 2 of annexed drawings. To fit up boiler-holelids or cover patterns, the boiler-hole plate is first removed from thebed-plate D, and the cover casting is then centred or adjusted on thetop or face side of the cutter-head J. Itis then bolted, through holespreviously drilled through it, to the flange 0, thereby firmly holdingit to said flange; and if the cover is sprung" or warped any in casting,so that it does not bear on evenly and equally all around the flange, asissometimes the case, then the adjustable bed screws a are set up tothose places not touching the flange, and so secured by check-nuts,thereby making a fi-rm'hearing all around to support the edge parts ofthe cover. The removable tool-holder K, with its tool It, is newadjusted in proper position for action upon the cover, and so secured bybolts and nuts tothe bed-plate D- The machine being now put inoperation, the cover is rotated in contact with tool it, and is thusfitted and trued up. The manner of bedding :2. cover to the aforesaidcutter-head J is shown by'the blue shade line in fig. 3.

That I claim as my invention, and desire to secure by Letters Patent, is

I claim the employment-0f a rotating tool holder, J, having a verticalfeed,motion,'a.nd itscshat't H passing through a bed-plate, in mannersubstantially as set forth, in combination with cireumjaeent adjustablehearing or bed" screws q, and a slotted bed-plate, D, with adjustableclamp and stay-pieces, substantially in manner as herein described, andfor the purposes set forth.

AARON P. RICH.

Witnesses:

A. D. HEAD, J'. J. SAVAGE.

